SU914258A1 - Apparatus for dressing shaper grinding wheel - Google Patents

Description

The invention relates to mechanical engineering and can be applied in the manufacture of precision shaped parts.

A device for straightening the shaped grinding wheel comprising a base, a rotatable housing almazoder- zhatepem ^5, follower mechanism and the radial displacement of the cam mechanism almazoderzhatelya almazoderzhatelya reversal in the direction normal to the profile of a circle, a cam fixed to the rotary body and the clip mounted on the base [one ].

However, the device has limited technological capabilities, since the editing of the circle when it is used is not in the plane, and therefore only the narrow ones can be filled with high accuracy. .

The purpose of the invention - the expansion of technological capabilities _th logical device.

This goal is achieved by the fact that the device is equipped with a shaft 2 located on the base moving in the direction of the axis

the foveal circle by the carriage on which the rotary body is mounted.

FIG. 1 shows the design of the device. roystva; in fig. 2 is a view A of FIG. 1; in FIG. 3 is a diagram explaining the operation of the device.

The device for dressing the shaped grinding wheel 1 comprises a base 2, in the guides 3 of which, mounted * parallel to the axis of rotation of the wheel 1, the carriage 4, covering the circle ’, can move. The axes 5 and 6 are rigidly connected with the rotary body 7 and are movably mounted in the holes of the carriage 4, which allows the body 7 to swing. Radial guides 11 are installed perpendicular to the axes 5 and 6 and fixed on the rotary casing 7. In the guides 11 the slider 12 moves with the diamond holder 13. The slider 12 under the action of the spring 14 is pressed with its roller 15

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to the copier 16, mounted on the base of the device. The rollers 15 and the copier form a copier mechanism for radial movement of the diamond holder. Profiles, Copier

16 corresponds to the profile of the grinding wheel 1. The carriage 4 by means of a spring

17 is pressed by a cam 18 fixed on the (swiveling housing 7 to the pc face 19 mounted on the bracket 20 of the base 2. The cam 18 and the roller 19 form the cam mechanism of the diamond holder rotation in the direction normal to the circle profile.

The device works as follows.

, Editing mechanism set to the starting position. To grinding wheel-. gu 1 let the diamond holder 13, turn on the actuator 8, which leads to movement of the rail 9 and rotation of the gear 10. Rotary body 7 starts turning in arrow B, roller 15 of the slider 12 follows copier 16, diamond rules circle 1. Cam 18, turning with core * with the start 7, pushes away from the roller 19 rigidly connected by the bracket 20 with the fixed base 2 of the device and moves the carriage 4 together with the rotary body 7 in the direction of the arrow B.

The center of rotation of the diamond holder is moved in a straight line O {y -O - 0, ' ₍ , due to which the tip

the diamond remains in the normal position to the profile of the circle 1. Indeed, in the position depicted by beam I, passing in the initial position through the left point of the profile of the circle, the tip of the diamond is directed to the center O. With further movement of the tip relative to the center O (in the position P shown by the dotted line ) the direction of the tip would deviate _; from the normal due to the variable steepness of the circle profile. Cam profile 18

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chosen so that when it rotates the center of the axis O would move to the point 0 "corresponding to the beam AND,

this position of the tip of the diamond remains

5 normal to refuel profile. Similarly, the direction of the beam IV when turning the cam 18 is replaced by the direction of the beam 1U ¹ with a corresponding displacement of the center of rotation to the point 0 ^. AT

The 10 position W of the normal direction coincides with the direction of the center O.

The presence of the carriage in the proposed device allows you to edit the wide profiles of the circle, which significantly expands

15 technological capabilities of the device. The device allows you to edit intermittent profiles, when the profile areas alternate with straight. The stroke of the carriage determined by the cam drop

20 mounted on a swivel case, can be any, with no kinematic distortion of the profile.

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Claims (1)

Claim A device for dressing a shaped grinding wheel, comprising a base, a rotary body with a diamond holder, ₃₀ copying mechanism for radial movement of the diamond holder and cam mechanism for turning the diamond holder in the direction of the norm to the profile of the circle, the cam of which is fixed on the rotary body, and the roller is installed on the base, characterized in that it is equipped with the base on the base the direction of the grinding wheel axis by the carriage on which the rotary body is mounted.